Classification of different patterns of pulmonary adenocarcinomas

Anna Truini, Poliana Santos Pereira, Alberto Cavazza, Paolo Spagnolo, Sofia Nosseir, Lucia Longo, Agita Jukna, Filippo Lococo, Giada Vincenzi, Giuseppe Bogina, Marcello Tiseo, Giulio Rossi

Research output: Contribution to journalReview articlepeer-review

19 Citations (Scopus)


The epidemic increase of adenocarcinoma histology accounting for more than 50% of primary lung malignancies and the advent of effective molecular targeted-therapies against specific gene alterations characterizing this tumor type have led to the reconsideration of the pathologic classification of lung cancer. The new 2015 WHO classification provided the basis for a multidisciplinary approach emphasizing the close correlation among clinical, radiologic and molecular characteristics and histopathologic pattern of lung adenocarcinoma. The terms 'bronchioloalveolar carcinoma' and 'mixed adenocarcinoma' have been eliminated, introducing the concepts of 'adenocarcinoma in situ' , 'minimally invasive adenocarcinoma' and the use of descriptive predominant patterns in invasive adenocarcinomas (lepidic, acinar, papillary, solid and micropapillary patterns). Invasive mucinous adenocarcinoma' is the new definition for mucinous bronchioloalveolar carcinoma, and some variants of invasive adenocarcinoma have been included, namely colloid, enteric and fetal-type adenocarcinomas. A concise update of the immunomorphologic, radiological and molecular characteristics of the different histologic patterns of lung adenocarcinoma is reported here.

Original languageEnglish
Pages (from-to)571-586
Number of pages16
JournalExpert Review of Respiratory Medicine
Issue number5
Publication statusPublished - 2015


  • Adenocarcinoma
  • Epidermal growth factor receptor
  • Ground-glass
  • Immunohistochemistry
  • In-situ
  • Lung
  • Mucinous
  • pattern
  • thyroid transcription factor 1
  • v-ki-ras2 kirsten rat sarcoma viral oncogene homolog

Field of Science*

  • 3.1 Basic medicine
  • 3.2 Clinical medicine

Publication Type*

  • 1.1. Scientific article indexed in Web of Science and/or Scopus database


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